Portable charger



FIG. 1 is a perspective view of a portable charger;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and

FIG. 7 is a bottom view thereof;

FIG. 8 is an enlarged view thereof of portion “8” shown in FIG. 1; and,

FIG. 9 is an enlarged view thereof of portion “9” shown in FIG. 4.

In the drawings, the broken lines represent portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for a portable charger, as shown and described. 